Influent flows through the basin and rises up through individual tubes. As flow travels up the tubes, solids settle on the tube surface. Clarified water is distributed into troughs to exit the basin. Sludge slides into the quiet zone beneath.

Extended filter run times and reduced chemical consumption increase cost-efficiency.

Green River Water Treatment Plant, Wyoming: Tube Settler modules were manufactured in 12 equal segments to fit a round basin with minimal field cutting.Basin area required to treat a given amount of flow. MRI 4' Tube Settlers (green) require less basin space, support structure, and installation time.